CN110374650B - Front canopy beam surface structure for coal mine tunneling - Google Patents
Front canopy beam surface structure for coal mine tunneling Download PDFInfo
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- CN110374650B CN110374650B CN201910728559.9A CN201910728559A CN110374650B CN 110374650 B CN110374650 B CN 110374650B CN 201910728559 A CN201910728559 A CN 201910728559A CN 110374650 B CN110374650 B CN 110374650B
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- telescopic
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- main beam
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- 239000003245 coal Substances 0.000 title claims abstract description 13
- 230000005641 tunneling Effects 0.000 title abstract description 8
- 230000008093 supporting effect Effects 0.000 claims abstract description 61
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 210000003739 neck Anatomy 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/0206—Hydraulically operated extension devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/03—Brackets for roof-supporting bars
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention provides a front canopy beam surface structure for coal mine tunneling, which comprises a main beam surface, a swinging side beam and a telescopic hydraulic cylinder, wherein the main beam surface is provided with a front canopy beam; the front end surface of the main beam surface is connected with a group of telescopic beams in a sliding manner; the left side and the right side of the main beam surface are hinged with a group of swing side beams; the supporting legs are in transmission connection with the supporting leg frames through supporting leg hydraulic cylinders; the rear end surfaces of the leg supports and the main beam surface are jointly hinged with a group of connecting rods; the main beam surface is in transmission connection with the swing side beam through a swing hydraulic cylinder; the main beam surface is in transmission connection with the telescopic beam through the telescopic hydraulic cylinder. Through setting up wobbling swing curb girder, when not horizontal to the well top, can strut the well top through the angle of adjusting swing curb girder, increase the area of strutting, improve and strut the ability.
Description
Technical Field
The invention belongs to the technical field of coal mine equipment, and particularly relates to a front canopy beam surface structure for coal mine tunneling.
Background
In the process of underground coal excavation, a front canopy is required to be used for temporarily supporting a working surface, and the conventional front canopy is generally driven by a hydraulic mechanism to support the front canopy on the working surface for supporting.
Based on the above, and the discovery of combining the equipment among the prior art, the existing forestope roof beam body is fixed straight frame construction, and in practical use, because well top is not the totally straight structure, especially to circular-arc well top, the forestope is when strutting because the supporting area is less, and the supporting ability is limited, and current forestope is mostly cantilever beam mechanism simultaneously, and the bearing capacity of forestope is limited, influences supporting performance.
Disclosure of Invention
In order to solve the technical problems, the invention provides a front canopy beam surface structure for coal mine tunneling, which aims to solve the problems that the existing front canopy beam body is a fixed straight frame structure, in actual use, the top of a well is not a completely straight structure, particularly for the top of an arc-shaped well, the front canopy has limited supporting capacity due to small supporting area during supporting, and meanwhile, the existing front canopy is mostly a cantilever beam mechanism, the bearing capacity of the front canopy is limited, and the supporting performance is influenced.
The invention is used for the purpose and the effect of a front canopy beam surface structure for coal mine tunneling, and is achieved by the following specific technical means:
the front canopy beam surface structure for coal mine tunneling comprises a main beam surface, a swinging side beam, a shaft neck, a sliding hole, a leg support, a telescopic beam, a sliding square rail, a telescopic side beam, a sliding round rail, a leg hydraulic cylinder, a swinging hydraulic cylinder, a connecting rod, a supporting leg and a telescopic hydraulic cylinder; the front end surface of the main beam surface is connected with a group of telescopic beams in a sliding manner; the left side and the right side of the main beam surface are hinged with a group of swing side beams; the front end surface of the swinging side beam is connected with a group of telescopic side beams in a sliding manner; the outer side of the swinging side beam is hinged with a group of the supporting leg frames; the bottom of the supporting leg frame is hinged with a group of supporting legs; the supporting legs are in transmission connection with the supporting leg frames through supporting leg hydraulic cylinders; the rear end surfaces of the leg supports and the main beam surface are jointly hinged with a group of connecting rods; the main beam surface is in transmission connection with the swing side beam through a swing hydraulic cylinder; the main beam surface is in transmission connection with the telescopic beam through the telescopic hydraulic cylinder.
Furthermore, the supporting leg is a supporting leg structure with a hydraulic telescopic function;
furthermore, a group of ball-head-shaped universal straight feet are arranged at the bottom of the supporting leg;
furthermore, the outer side of the swinging side beam is of a circular columnar structure, two groups of smooth shaft necks are arranged on the outer side of the circular columnar structure, and the leg support is hinged with the swinging side beam through axial matching with the shaft necks;
furthermore, two groups of square sliding square rails are arranged on the rear end face of the telescopic beam, and the telescopic beam is in sliding fit with the main beam surface through the sliding square rails;
furthermore, a group of sliding circular rails is arranged on the rear end surface of the telescopic side beam, the telescopic side beam is connected with the swinging side beam in a sliding mode through the sliding circular rails, and the telescopic side beam can rotate in the swinging side beam;
furthermore, the length of the connecting rod is equal to that of the swinging side beam, the connecting rod and the swinging side beam are installed in parallel, and the connecting rod is installed horizontally;
furthermore, the main beam surface, the swinging side beam, the leg support and the connecting rod are sequentially hinged to form a double-rocker mechanism.
Compared with the prior art, the invention has the following beneficial effects:
by arranging the telescopic beams and the telescopic side beams, the working face which is just tunneled is timely supported, so that the safety is improved, the supporting area is increased, and the using effect is improved; by arranging the swinging side beam capable of swinging, when the top of the hoistway is not horizontal, the top of the hoistway can be supported by adjusting the angle of the swinging side beam, so that the supporting area is increased, and the supporting capability is improved; the telescopic supporting legs can be used for carrying out secondary support on the forepoling beam, so that the supporting capacity is improved, the safety is improved, the ball-head-shaped universal straight feet are arranged at the bottoms of the supporting legs, the supporting area is increased, when the supporting legs are used in an inclined mode, the supporting angle can be adjusted, the supporting capacity is improved, the supporting position is prevented from sliding, and the safety is improved; the double-rocker mechanism formed by the main beam surface, the swinging side beam, the leg support and the connecting rod ensures that the leg support can always keep a vertical state when the swinging side beam swings, ensures that the supporting leg has good supporting capability and improves the supporting effect of the supporting leg.
Drawings
FIG. 1 is a schematic axial side view of the present invention.
Fig. 2 is a front sectional structural schematic view of the present invention.
Fig. 3 is a schematic sectional view taken along line a-a in fig. 2 according to the present invention.
Fig. 4 is a rear view structural diagram of the present invention.
Fig. 5 is a schematic view of the structure of the connection shaft side of the main beam surface and the swing side beam of the present invention.
Fig. 6 is a schematic side view of the telescopic beam and the telescopic side member of the present invention.
Fig. 7 is a schematic view of the swing side member axle side structure of the present invention.
Fig. 8 is a schematic view of the present invention at a part enlarged in fig. 1.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1-main beam surface, 2-swing side beam, 201-journal, 202-sliding hole, 3-leg support, 4-telescopic beam, 401-sliding square rail, 5-telescopic side beam, 501-sliding circular rail, 6-leg hydraulic cylinder, 7-swing hydraulic cylinder, 8-connecting rod, 9-supporting leg and 10-telescopic hydraulic cylinder.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 8:
the invention provides a front canopy beam surface structure for coal mine tunneling, which comprises: the device comprises a main beam surface 1, a swinging side beam 2, a shaft neck 201, a sliding hole 202, a leg support 3, a telescopic beam 4, a sliding square rail 401, a telescopic side beam 5, a sliding circular rail 501, a leg hydraulic cylinder 6, a swinging hydraulic cylinder 7, a connecting rod 8, a supporting leg 9 and a telescopic hydraulic cylinder 10; the front end surface of the main beam surface 1 is connected with a group of telescopic beams 4 in a sliding manner; the left side and the right side of the main beam surface 1 are hinged with a group of swing side beams 2; the front end surface of the swing side beam 2 is connected with a group of telescopic side beams 5 in a sliding way; the outer side of the swing side beam 2 is hinged with a group of supporting leg frames 3; the bottom of the supporting leg frame 3 is hinged with a group of supporting legs 9; the supporting legs 9 are in transmission connection with the supporting leg frame 3 through supporting leg hydraulic cylinders 6; the rear end surface of the leg support 3 and the rear end surface of the main beam surface 1 are jointly hinged with a group of connecting rods 8; the main beam surface 1 is in transmission connection with the swing side beam 2 through a swing hydraulic cylinder 7; the main beam surface 1 is in transmission connection with the telescopic beam 4 through a telescopic hydraulic cylinder 10.
The supporting legs 9 are of a supporting leg structure with a hydraulic telescopic function, and the forepoling beam is supported through the telescopic function of the supporting legs, so that the supporting capacity is improved.
Wherein, the bottom of supporting leg 9 is provided with the universal straight foot of a set of bulb type, increases the support area, when supporting leg 9 inclines to use, can adjust support angle, improves the support ability.
Wherein, the outside of swing curb girder 2 is circular columnar structure, and the circular columnar structure outside is provided with two sets of glossy journals 201, and the landing leg frame 3 is connected with swing curb girder 2 hinge through with journal 201 axiality cooperation.
Wherein, the rear end face of flexible roof beam 4 is provided with two sets of square slip square rails 401, and flexible roof beam 4 passes through slip square rails 401 and girder face 1 sliding fit.
Wherein, the rear end face of the telescopic side beam 5 is provided with a group of sliding circular rails 501, the telescopic side beam 5 is connected with the swing side beam 2 in a sliding way through the sliding circular rails 501, and the telescopic side beam 5 can rotate in the swing side beam 2.
Wherein, the length of connecting rod 8 equals with the length of swing curb girder 2, and connecting rod 8 and swing curb girder 2 are parallel mount, and connecting rod 8 is horizontal installation.
Wherein, the main beam surface 1, the swing side beam 2, the leg support 3 and the connecting rod 8 are sequentially hinged to form a double-rocker mechanism.
When in use: when the device is installed, the front canopy beam surface is installed on a support rod of the front canopy, when a working surface with a certain radian at the top of a well is vertically supported, the swinging side beam 2 is driven to swing through the swinging hydraulic cylinder 7, the inclination of the swinging side beam 2 is close to that of the top of the well, the leg frame 3 is kept in a vertical state under the action of a double-rocker mechanism formed by the main beam surface 1, the swinging side beam 2, the leg frame 3 and the connecting rod 8, the main beam surface 1 is lifted to a support height to be supported, the support legs 9 are unfolded through the leg hydraulic cylinders 6 and supported on a stable foundation to support the front canopy, the support capacity is improved, in the supporting process, the telescopic beams 4 and the telescopic side beams 5 can be driven to slide forwards through the telescopic hydraulic cylinders 10 to support the front, the support area is improved, and the driving working surface is timely supported, the safety is improved.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (3)
1. A forestope beam surface structure for colliery is tunneled, its characterized in that: this a forestope beam surface structure for coal mine tunnelling includes: the device comprises a main beam surface (1), a swinging side beam (2), a shaft neck (201), a sliding hole (202), a leg support (3), a telescopic beam (4), a sliding square rail (401), a telescopic side beam (5), a sliding circular rail (501), a leg hydraulic cylinder (6), a swinging hydraulic cylinder (7), a connecting rod (8), a supporting leg (9) and a telescopic hydraulic cylinder (10); the front end face of the main beam face (1) is connected with a group of telescopic beams (4) in a sliding mode; the left side and the right side of the main beam surface (1) are hinged with a group of swing side beams (2); the front end surface of the swinging side beam (2) is connected with a group of telescopic side beams (5) in a sliding manner; the outer side of the swinging side beam (2) is hinged with a group of the supporting leg frames (3); the bottom of the supporting leg frame (3) is hinged with a group of supporting legs (9); the supporting legs (9) are in transmission connection with the supporting leg frame (3) through supporting leg hydraulic cylinders (6); the rear end face of the leg support (3) and the rear end face of the main beam face (1) are jointly hinged with a group of connecting rods (8); the main beam surface (1) is in transmission connection with the swing side beam (2) through a swing hydraulic cylinder (7); the main beam surface (1) is in transmission connection with the telescopic beam (4) through the telescopic hydraulic cylinder (10), the outer side of the swing side beam (2) is of a circular columnar structure, a sliding hole (202) is formed in the circular columnar structure, two groups of smooth shaft necks (201) are arranged on the outer side of the circular columnar structure, the leg support (3) is hinged with the swing side beam (2) through axial matching with the shaft neck (201), the length of the connecting rod (8) is equal to that of the swing side beam (2), the connecting rod (8) and the swinging side beam (2) are arranged in parallel, the connecting rod (8) is arranged horizontally, the main beam surface (1), the swinging side beam (2), the leg support (3) and the connecting rod (8) are sequentially hinged to form a double-rocker mechanism; the rear end face of the telescopic beam (4) is provided with two groups of square sliding square rails (401), and the telescopic beam (4) is in sliding fit with the main beam face (1) through the sliding square rails (401); the rear end face of the telescopic side beam (5) is provided with a group of sliding circular rails (501), the telescopic side beam (5) is in sliding connection with the swing side beam (2) through the sliding circular rails (501), and the telescopic side beam (5) can rotate in the swing side beam (2).
2. A forepoling bar beam face structure for coal mine tunnelling as claimed in claim 1, which is: the supporting leg (9) is a supporting leg structure with a hydraulic telescopic function.
3. A forepoling bar beam face structure for coal mine tunnelling as claimed in claim 1, which is: the bottom of the supporting leg (9) is provided with a group of ball-head-shaped universal straight feet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910728559.9A CN110374650B (en) | 2019-08-08 | 2019-08-08 | Front canopy beam surface structure for coal mine tunneling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910728559.9A CN110374650B (en) | 2019-08-08 | 2019-08-08 | Front canopy beam surface structure for coal mine tunneling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110374650A CN110374650A (en) | 2019-10-25 |
| CN110374650B true CN110374650B (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910728559.9A Active CN110374650B (en) | 2019-08-08 | 2019-08-08 | Front canopy beam surface structure for coal mine tunneling |
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| CN (1) | CN110374650B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1224251B (en) * | 1964-07-10 | 1966-09-08 | Salzgitter Maschinen Ag | Multi-part cap of an extension serving to support pit spaces |
| CN201083130Y (en) * | 2007-10-10 | 2008-07-09 | 山东天河科技有限公司 | Coal mining development machine carried advance support device |
| CN202832541U (en) * | 2012-10-12 | 2013-03-27 | 邹城兖矿泰德工贸有限公司 | Onboard temporary supporting device |
| CN207647536U (en) * | 2017-09-09 | 2018-07-24 | 左垒安 | The multidirectional adjustable driving frame of tunnelling gib |
| CN207761693U (en) * | 2018-01-18 | 2018-08-24 | 陈海涛 | One kind being used for coal mine excavation operation face suspension device |
| CN207999249U (en) * | 2018-04-03 | 2018-10-23 | 国电建投内蒙古能源有限公司 | A kind of fully-mechanized digging machine fluid pressure type forestope |
| CN208934721U (en) * | 2018-10-29 | 2019-06-04 | 徐佳佳 | It is a kind of to tunnel suspension device with the coal mine for adjusting angle |
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2019
- 2019-08-08 CN CN201910728559.9A patent/CN110374650B/en active Active
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| CN110374650A (en) | 2019-10-25 |
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Effective date of registration: 20201222 Address after: 712000 No.17, Yimen street, Binzhou City, Xianyang City, Shaanxi Province Applicant after: SHAANXI BINCHANG XIAOZHUANG MINING Co.,Ltd. Address before: Team 22, Shenqu village, Yaofu Town, Pingluo County, Shizuishan City, Ningxia Hui Autonomous Region 753400 Applicant before: Jiang Aitao |
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